Streamlit

first.py

"""
# My first app
Here's our first attempt at using data to create a table:
"""

import streamlit as st

message = """
一些常见的微分公式如下（其中$f$和$g$是可微函数，$k$是常数）：

1. 导数定义式：$\displaystyle f'(x) = \lim_{h\to0}\frac{f(x+h)-f(x)}{h}$

2. 幂规则：$(x^k)' = kx^{k-1}$

3. 和差规则：$(f+g)' = f'+g'$，$(f-g)'=f'-g'$

4. 积规则：$(fg)' = f'g + fg'$

5. 商规则：$\left(\frac{f}{g}\right)' = \frac{f'g - fg'}{g^2}$

6. 链式法则：$\displaystyle (f(g(x)))' = f'(g(x))g'(x)$

一个使用Golang语言编写的HelloWorld程序如下：

```go
package main

import "fmt"

func main() {
    fmt.Println("Hello, world!")
}
```

运行结果为：

```
Hello, world!
```
"""

def str_to_raw(s):
    raw_map = {8:r'\b', 7:r'\a', 12:r'\f', 13:r'\r', 9:r'\t', 11:r'\v'}
    return r''.join(i if ord(i) > 32 else raw_map.get(ord(i), i) for i in s)

a = "$\left(\frac{f}{g}\right)' = \frac{f'g - fg'}{g^2}$"
b = r"$\left(\frac{f}{g}\right)' = \frac{f'g - fg'}{g^2}$"

st.write(b)
st.write(str_to_raw(a))
st.write(str_to_raw(message))

streamlit_tips.md

• export STREAMLIT_BROWSER_GATHER_USAGE_STATS=0，禁用数据收集
• export STREAMLIT_CLIENT_CACHING=0，禁用客户端数据缓存